Point of purchase sign



FIG. 1 is a front view of a point of purchase sign showing my new ornamental design and in which the word "open" is exposed to customer view;

FIG. 2 is a side perspective view thereof and showing the diametrically spaced positioning of the words "open" and "closed" on the sign;

FIG. 3 is a plan side view thereof; and

FIG. 4 is a rear view thereof except that the word "closed" has now been exposed to customer view. 

The ornamental design for a point of purchase sign, substantially as shown. 